Freelance OS is 14 production-grade skills that turn Claude into your back office: proposals, scopes, invoices, a real CRM, contract review, and rate math — all sharing one data folder that becomes your business’s memory.
Get Freelance OS — $39 USD Start free — no installThe tools run in your browser — nothing to install, nothing uploaded. The skills are the same two files either way; grab them from GitHub or as a one-command install, whichever you prefer. No signup, no email gate. Take any of it and never come back — that’s the point.
Your true floor rate from real costs, taxes, and the billable hours you actually have. The standard salary ÷ 2080 formula understates it by roughly 3x. Runs in your browser.
Paste a client contract, get the ten clauses that cost freelancers money — IP transferring before payment, unlimited revisions, uncapped liability — each with wording you can send back. Nothing is uploaded.
Two complete skills, MIT licensed, plus a write-up of the architecture pattern behind all fourteen. Useful even if you build your own instead of buying mine.
The same two skills packaged for one-command install, if you’d rather not clone a repo. rate-calculator and follow-up-writer.
Long-form, specific, and free. Written because the existing advice on these topics is mostly vague reassurance.
The full escalation sequence — day 1, day 7, day 14, day 30 — with copy-paste emails for each stage, what to do if they still refuse, and the five contract terms that stop it recurring.
Seven “quick” requests turn a $100/hr project into an $81/hr one. The single question that separates a change from a clarification, three copy-paste replies, and the exact scope-of-work clauses that stop it.
A 20% rise lets you lose one client in six and earn exactly the same — with the hours back. The breakeven math, the 60-day notice email, and both replies to pushback.
For designers, developers, writers, and consultants. Every skill reads your rates, terms, and client history from the same folder — so each proposal, invoice, and follow-up already knows your business.
Rough notes → client-ready proposal with three-option pricing.
SOWs that name the 5–8 requests this client will make and price them out front.
Sequential invoices tied to SOW milestones, plus a ledger tracking who owes you.
A plain-markdown CRM every other skill reads and keeps current.
Your floor rate from real costs — taxes, a 46-week year, a 55% billable ratio.
Ten red flags, including IP that transfers on creation instead of on payment.
Two of the skills are also on GitHub, MIT licensed, alongside a write-up of the architecture pattern behind them: fernmill/claude-skills-for-freelancers.
…plus client-onboarding, weekly-status-report, meeting-to-actions, follow-up-writer, cold-outreach, case-study-writer, testimonial-collector, project-postmortem.
Yes. That’s the honest answer, and it’s worth taking seriously before you spend anything.
Not prompts — a system. Fourteen skills sharing a file layout, so invoice-generator reads the payment schedule scope-of-work wrote, and project-postmortem feeds your realized hourly rate back into rate-calculator before you quote the next job. Getting that wiring right, then finding the edges — what belongs in an SOW so scope creep stays a friendly conversation, when to send the takeaway-close email, why IP should transfer on payment and not on creation — is the work. The typing was never the hard part.
The free starter is two complete skills, not a teaser. Run rate-calculator against your real numbers. If it doesn’t tell you something about your pricing you didn’t already know, ignore the rest of this page — you genuinely don’t need it.